Improvement in hose-couplings



Patented 0st. 19,1875.

w. A. cAswELL.

Huse-Coupling.

'T4/image1 l ,screw-threads therein.

UNITED STATES PATENT Qrrtce.

WILLIAM A. CASWELL, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF HIS RIGHTTO E. B. PRESTON, OF SAME PLACE.

IMPROVEMENT IN HOSE-COUPLINGS.

Specication forming part of Letters Pat-ent No. 168,970, dated October19, 1875; application tiled August 6, 1875.

section ot' my improved hose-coupling.

The tail-piece marked I, which carries the swivel C, consists of a tube,the larger end A ot' which has a screw-thread formed upon it ato tirmlyhold the hose, into the end of which it is screwed. rIhe swivel (l hasat one end an inwardly-projecting annular shoulder, c, the bore ot'which snugly ts the smaller or contracted end A' ot' the tail-piece 1.The swivel, after having been slipped with its shouldered end over thepart A of tail-piece 1, is confined thereon by expanding the extreme endof part A' by spinning or otherwise forming a bead or shoulder, c',which, together with the shoulder a formed at the junction of the partsA and A', locks the swivel on the tail-piece so that it cannot beremoved therefrom, though it is free to turn thereon. The end B of thetail-piece 2 is screw-threaded in manner like part A ot' tail-piece l,and its contracted end B receives a screw-threaded sleeve, D, adapted toenter the swivel and enga-ge with the The sleeve D is secured on thepart B' of tail-piece 2 by expanding the extreme end of part B ot' theend of the sleeve, the other end of which abuts against the shoulderformed at the junction of the parts B and B' of the tail-piece. Thesleeve D tits tightly on the part B', and is secured rigidly thereto, sothat it cannot turn thereon. rlhe threads on the parts A and B of therespective tail-pieces may have the crosssectional t'orm shown, or, it'preferred, they may be quadrantal inl cross -section, as described inanother application for Letters Pattent filed by me.

In applying this invention to the hose-coupling there deseribed, theswivel and screwthreaded sleeve will, of course, have to be connectedrespectively to the encircling sleeves, instead ot' to the tail-piecesdirectly.

One great advantage that this inode ot' constructing the tail-piece andconnecting the swivel thereto possesses over the ordinaryA end ot' thetail-piece, substantially as for the purpose specified.

In testimony whereof I have signed my naine to this specitication in thepresence of two subscribing witnesses.

WILLIAM A. CASWELL.

Witnesses:

B. L. PEAsE, GEO. D. PEAsE.

